There is a soup shop next to Naihe Bridge, selling Meng Po soup. But there is something wrong with Po Meng this time - she is too young, she has only been working as a job for a hundred years, and she is still an intern Po Meng. The soup she made always went wrong: some people drank it and forgot everything and became like a baby, some people drank it and remembered the past, and what was even more outrageous was that a ghost sang a song all night after drinking it. The King of Hell gave her an ultimatum: if she made one more mistake, she would be sent to the eighteenth level of hell to clean toilets. But at this time, a ghost came who didn't want to drink soup. He stood at the bridge and said, "I don't want to forget this in my life."